Call management system case assembly



FIG. 1 is a front, top, and left side perspective view of a call management system case assembly showing our new design;

FIG. 2 is a left side elevational view, the right side being a mirror image thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a rear elevational view thereof; and,

FIG. 6 is a bottom plan view thereof. 

The ornamental design for a call management system case assembly, as shown and described. 